Using preparative guards is a proven and cost effective way to extend the lifetime of your preparative columns. Thermo Scientific™ Preparative Guard Column Holders allow for easy assembly and connection of the guard column to the preparative column.

A range of guard holder sizes are offered, which are all in a convenient stand-alone format that requires connections from the LC inlet and outlet to the preparative LC column.

Preparative guard holders are available in ¹/₁₆ or ¹/₈" connection fittings in the larger guard sizes to be compatible with your Preparative HPLC system hardware.